Fan



FIG. 1 is a perspective view of a fan;

FIG. 2 is a front elevation view of the fan;

FIG. 3 is a left elevation view of the fan;

FIG. 4 is a right elevation view of the fan;

FIG. 5 is a top plan view of the fan;

FIG. 6 is a bottom plan view of the fan; and,

FIG. 7 is a rear elevation view of the fan.

Broken lines shown in the drawing views illustrate portions of the fan, and form no part of the claimed design. 

CLAIM We claim the ornamental design for a fan, as shown and described. 